Home / 13,505,261.78-18,639,616.98-8,001,735.20

Finding the Fourth Proportional to 13,505,261.78, 18,639,616.98 and 8,001,735.20

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Solution

The fourth proportional to 13,505,261.78, 18,639,616.98 and 8,001,735.20 is: 11,043,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505,261.78 : 18,639,616.98 = 8,001,735.20 : x
  2. Step 2: Convert to fraction form
    13,505,261.78/18,639,616.98 = 8,001,735.20/x
  3. Step 3: Cross multiply
    13,505,261.78x = 18,639,616.98 × 8,001,735.20
  4. Step 4: Simplify right side
    13,505,261.78x = 149,149,279,303,383.69
  5. Step 5: Solve for x
    x = 149,149,279,303,383.69/13,505,261.78
  6. Step 6: Final answer
    x = 11,043,790.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.